Firmware Download

Download the old version

Download Type Firmware
Model name IC-9100
Version Release E3
Update Jan.27.2015
Major changes


The firmware update modifies the IC-9100's transmitted DTCS code modulation waveform so undesired sound is not heard at the receiver.


  • A USB cable is required. (A-B type, purchase separately)
    The firmware is updated through the USB port on the rear panel of the IC-9100.
  • You must install the USB driver before connecting the USB cable between the IC-9100 and the PC. Download the USB driver here.
  • Save the setting data using the optional CS-9100 cloning software before starting the firmware update.
  • Thoroughly read "Firmware update instructions (here)"to know what the update requires.
  • Never turn OFF the transceiver power or disconnect the USB cable during the update.
  • Never connect anything, not even a cable, to the REMOTE jack, otherwise the firmware update may fail.
  • If you connect two or more IC-9100s to the PC, turn the power ON for only the one that you want to update as the update tool works on only one transceiver at a time.
File Size 1.19MB
File Type zip
Manual manual download page

Regarding this Download Service.

When using this download service, the implementation, use and/or results of use are the sole responsibility of you using this download service and the equipment. You shall comply with applicable laws and regulatory requirements in the use of this download service and in the operation of the equipment.

Firmware is important data for the basic system control of your equipment. An interruption during downloading or a malfunction may cause a failure in the data re-writing, and your equipment may stop functioning normally. If such a failure of the firmware re-writing results in your equipment not functioning normally, Icom Inc. and its affiliates expressly denies and is free from any and all responsibility arising from the result of damage from such an event.

You agree not to hold Icom Inc. and its affiliates responsible for any damage to your equipment operation or loss of data, or unauthorized use of the equipment, whether intentional or not, as a result of use this download service.